It’s_____ black. It’ s ____ black ruler.
-___________ do you go to Old People’s Home? -Twice a month.
-Mom, I’m leaving. -It’s raining. You’d better ________ an umbrella with you.
The city park will be cleaner ___________ people stop dropping litter here and there.
-How many ___________ would you like? -Two, please. I have a friend here.
More and more people like to talk with their friends ______ sending messages on WECHAT(微信)